On 8/27/20 2:47 PM, Christoph wrote:
Using blkback works for me, e.g. <driver name='phy'...>.
what is the diff to 'qemu'?
It's just a different block backend. Xen supports both qemu as a block backend
and blkback. blkback only supports raw IIRC. And apparently, when used with Xen,
the qemu backend only support rw.
What xl config did you use? It doesn't work for me if I specify qdisk
and readonly. E.g. the following does not work
"backendtype=qdisk,format=raw,vdev=xvdz,access=ro,target=..."
"phy:/dev/mapper/keys,xvdz,r"
As expected you are using blkback.
Regards,
Jim
